Configuring Analog Sound DVI to HDMI

Firstly I tested the audio was working on my PC before even hooking to the TV and after hooking it to the TV I modified the xorg.conf to test that infact the sound would work by adding the following Option "UseEdid" "FALSE" in the Section "Screen" and opening Rythmbox then selecting a Radiostation to play - the resolution was jacked up but the sound played.

The first part was getting my TV EDID.bin, I did this by booting my computer (Ubuntu) on my TV going to Aplications>System Tools>Nvidia X Server Settings then to the section DFP-0 and clicking on the button "Acquire EDID", saved it and transferred that file to my Windows box.

I downloaded the application Monitor Asset Manager from ([1] - Windows only) launched that program and copied out the modelines for use in the my xorg.conf. I'm sure there are other ways but this was very simple.

After acuiring the Modelines, I had to modify the EDID file itself and did this with a cool utility on this site ([2]) it's called edid_disable_exts. It actually did all the modification to the EDID file for me by simply feeding it the input and output file names (./edid_disable_exts [input_file] [output_file] ). The original file was 256bytes and the modified file was 128bytes if I remember correctly.

Once that file was created and saved back on Ubuntu in /etc/X11/ I needed to assemble my xorg.conf and needed to include the following which directs xorg to use the new EDID file I had just created.

A reboot loaded the new xorg.conf and the resolution was set correctly. I would suggest taking a look in xorg.log for any issues that might arise also that you turn off any "Visual Effects" System>Preferences>Appearance, this was important for me, YMMV.